US20220154508A1 - Lid opening and closing device - Google Patents
Lid opening and closing device Download PDFInfo
- Publication number
- US20220154508A1 US20220154508A1 US17/454,515 US202117454515A US2022154508A1 US 20220154508 A1 US20220154508 A1 US 20220154508A1 US 202117454515 A US202117454515 A US 202117454515A US 2022154508 A1 US2022154508 A1 US 2022154508A1
- Authority
- US
- United States
- Prior art keywords
- sleeve
- pushrod
- cam
- axial direction
- cam hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000037431 insertion Effects 0.000 claims description 42
- 238000003780 insertion Methods 0.000 claims description 42
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 38
- 238000001514 detection method Methods 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 8
- 239000000945 filler Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/05—Inlet covers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/22—Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/28—Locks for glove compartments, console boxes, fuel inlet covers or the like
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/28—Locks for glove compartments, console boxes, fuel inlet covers or the like
- E05B83/34—Locks for glove compartments, console boxes, fuel inlet covers or the like for fuel inlet covers essentially flush with the vehicle surface
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
- E05C19/022—Released by pushing in the closing direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/05—Inlet covers
- B60K2015/0515—Arrangements for closing or opening of inlet cover
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/05—Inlet covers
- B60K2015/0561—Locking means for the inlet cover
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/05—Inlet covers
- B60K2015/0561—Locking means for the inlet cover
- B60K2015/0584—Locking means for the inlet cover the locking bolt is linearly moved to lock or unlock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/30—Sensors
- B60Y2400/301—Sensors for position or displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/40—Actuators for moving a controlled member
- B60Y2400/405—Electric motors actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2410/00—Constructional features of vehicle sub-units
- B60Y2410/10—Housings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05DÂ AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/534—Fuel lids, charger lids
Definitions
- the present invention relates to a lid opening and closing device.
- the fuel lid is opened and closed by a so-called push-push mechanism.
- This push-push mechanism holds the moving member (pushrod) at the pushing position and closes the fuel lid by pushing the fuel lid in the closing direction, and the fuel lid is opened by pushing the fuel lid again and projecting the moving member.
- a protrusion is formed in the moving member, and the protrusion is inserted into a guide groove (cam hole) of the main body so as to be relatively movable.
- the lid opening and closing device has room for improvement in the following points. That is, in the lid opening and closing device, the cylindrical main body is composed of two members, a first main body and a second main body, which are divided into two in the axial direction, and a guide groove is formed between the first main body and the second main body. Therefore, for example, when the first main body and the second main body are assembled so as to be displaced in the circumferential direction of the main body, the shape of the guide groove is formed to be different from the normal shape. In this case, for example, the protrusion may move in the cam groove in the opposite direction. This may reduce the operating performance of the moving member.
- At least one embodiment of the present invention is a lid opening and closing device comprising: a pushrod configured to be able to make a reciprocating movement in the axial direction and has a protrusion on the outer circumference; a tubular sleeve that accommodates the pushrod so that it can be moved in the axial direction and rotatable around the axis; wherein, the sleeve comprises: a first sleeve configuring the one side portion in the axial direction of the sleeve; a second sleeve that is arranged apart on the other side in the axial direction of the first sleeve and configuring the other side portion in the axial direction of the sleeve; a connecting portion that connects the first sleeve and the second sleeve; a cam hole that is arranged between the first sleeve and the second sleeve and into which the protrusion is inserted so as to be relatively movable, and guides the protrusion and rotates the
- At least one embodiment of the present invention is the lid opening and closing device, wherein the connecting portion comprises: a connecting main body portion extending in the axial direction on the outer side in the radial direction of the first sleeve and the second sleeve; a first leg portion that connects one end of the connecting main body portion and the first sleeve; and a second leg portion that connects the other end of the connecting main body portion and the second sleeve.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the second sleeve is formed with an insertion groove configured so that the protrusion can be inserted, wherein the insertion groove penetrates the second sleeve in the axial direction and communicates with the cam hole.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the pushrod is urged to one side in the axial direction by an urging member, the cam hole comprises a first cam hole portion that guides the protrusion when the pushrod moves to the other side in the axial direction, and a second cam hole portion that guides the protrusion when the pushrod moves to one side in the axial direction, wherein the second cam hole portion communicates with the insertion groove.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the diameter of the first sleeve is set smaller than the diameter of the second sleeve, the insertion groove penetrates the connecting main body portion in the radial direction of the sleeve, and the first leg portion and the insertion groove are arranged so as to overlap each other, when viewed from the axial direction of the sleeve.
- the operability of the pushrod can be improved.
- FIG. 1 is a perspective view which shows the lid opening and closing device which concerns on this embodiment.
- FIG. 2 is an exploded perspective view of the lid opening and closing device shown in FIG. 1 .
- FIG. 3 is a plan view which shows the lid opening and closing device shown in FIG. 1 in a state where the upper case is removed.
- FIG. 4 is a plan view showing a state in which the pushrod of the lid opening and closing device shown in FIG. 3 is pushed into the pushing position.
- FIG. 5 is an exploded perspective view of the push-push mechanism shown in FIG. 2 .
- FIG. 6 is a trihedral figure of the sleeve shown in FIG. 5 .
- FIG. 7 is a perspective view of the lock member shown in FIG. 2 .
- FIG. 8A is a front view seen from the front side showing a state in which the pushrod is arranged at the pushing position and the locking member is arranged at the locking position
- FIG. 8B is a front view showing a state in which the pushrod is arranged at the protruding position and the lock member is arranged at the unlocked position.
- FIG. 9 is a cross-sectional view (enlarged cross-sectional view taken along line 9 - 9 of FIG. 8A ) showing an engaged state between the cam protrusion and the lock portion shown in FIG. 8A .
- FIG. 10 is a developed view of the cam hole of the sleeve shown in FIG. 5 .
- the lid opening and closing device 10 according to the present embodiment will be described with reference to the drawings.
- the arrows UP, FR, and RH which are appropriately shown in the drawings, indicate the upper side, the front side, and the right side of the lid opening and closing device 10 , respectively.
- the vertical, front-back, and left-right directions of the lid opening and closing device 10 are used to indicate the up-down direction, front-back direction, and left-right direction of the lid opening and closing device 10 unless otherwise specified.
- the lid opening and closing device 10 is configured as an opening and closing device for a fuel lid (not shown) that opens and closes a fuel filler port of a vehicle (automobile).
- the lid opening and closing device 10 comprises a case 12 that form an outer shell of the lid opening and closing device 10 , a push-push mechanism 20 , and a lock mechanism 40 .
- the push-push mechanism 20 has a pushrod 30 whose axial direction is the front-rear direction, and the pushrod 30 is configured to be movable (can move forward and backward) between the protruding position shown in FIG. 3 and the pushing position pushed backward from the protruding position (cf. FIG. 4 ).
- the pushrod 30 By arranging the pushrod 30 at the protruding position, the fuel lid is set to be in an open state in which the fuel filler port is opened.
- the pushrod 30 is pushed from the protruding position to the pushing position by the fuel lid, and the lid opening and closing device 10 maintains the closed state of the fuel lid.
- each configuration of the lid opening and closing device 10 will be described.
- the case 12 is formed in a roughly U-shaped box shape that is open to the right side in a plan view seen from above.
- the case 12 is divided into two in the vertical direction. Specifically, the case 12 comprises a lower case 14 that constitutes a lower portion of the case 12 and an upper case 16 that constitutes an upper portion of the case 12 .
- the lower case 14 is formed in a box shape that is open upward.
- the front portion of the right portion of the lower case 14 is configured as a first accommodating portion 14 A for accommodating the push-push mechanism 20 described later.
- a circular insertion hole 14 B is formed through the front wall of the first accommodating portion 14 A. Further, the opening edge portion on the front side of the insertion hole 14 B protrudes to the front side, and a cylindrical pad 18 is fitted in the opening edge portion.
- the left portion of the lower case 14 is configured as a second accommodating portion 14 C for accommodating the lock mechanism 40 described later.
- a connector portion 14 D projecting to the right side is formed at the rear end portion of the second accommodating portion 14 C, and the connector portion 14 D is arranged on the rear side of the first accommodating portion 14 A and is opened to the right side.
- the front portion of the second accommodating portion 14 C is configured as the lock member accommodating portion 14 E
- the rear portion of the second accommodating portion 14 C is configured as a motor accommodating portion 14 F
- the lock member accommodating portion 14 E and the motor accommodating portion 14 F are partitioned by a partition wall 14 G.
- a raised portion 14 H that rises upward is formed on the front portion of the bottom surface of the lock member accommodating portion 14 E, and the lock member 50 , which will be described later, is held by the raised portion 14 H (cf. FIGS. 3, 4, and 8 ).
- the upper case 16 is formed in a plate shape with the vertical direction as the plate thickness direction, and formed so that the outer shape of the upper case 16 is similar to the outer shape of the lower case 14 in a plan view.
- the upper case 16 is assembled to the lower case 14 by claw fitting to close the opening of the lower case 14 . Further, a part of the upper case 16 is raised upward corresponding to the push-push mechanism 20 and the lock mechanism 40 , which will be described later.
- the push-push mechanism 20 includes a sleeve 22 , a pushrod 30 , and a spring 34 as an urging member.
- the sleeve 22 is made of resin and is formed in a roughly cylindrical shape with the front-rear direction as the axial direction as a whole.
- the sleeve 22 is arranged coaxially with the insertion hole 14 B in the first accommodating portion 14 A of the case 12 , and is fixed to the case 12 by the upper case 16 and the lower case 14 .
- the sleeve 22 comprises a small-diameter tubular portion 23 as the first sleeve constituting the front portion (one side portion in the axial direction) of the sleeve 22 , a large-diameter tubular portion 24 as a second sleeve constituting the rear portion (the other side portion in the axial direction) of the sleeve 22 , and a pair of connecting portions 25 for connecting the small-diameter tubular portion 23 and the large-diameter tubular portion 24 .
- the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged apart from each other in the front-rear direction.
- a cam hole 26 is formed between the small-diameter tubular portion 23 and the large-diameter tubular portion 24 on the outer peripheral wall of the sleeve 22 , and the cam hole 26 is formed over the entire circumference of the sleeve 22 in the circumferential direction.
- the cam hole 26 guides the movement of the pushrod 30 , which will be described later.
- the diameter of the small-diameter tubular portion 23 is set smaller than the diameter of the large-diameter tubular portion 24 , and the small-diameter tubular portion 23 is arranged inside in the radial direction of the large-diameter tubular portion 24 when viewed from the axial direction of the sleeve 22 .
- the outer diameter of the small-diameter tubular portion 23 coincides with the inner diameter of the large-diameter tubular portion 24 . That is, the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged at positions where they do not overlap when viewed from the axial direction of the sleeve 22 .
- the pair of connecting portions 25 are arranged on the outer side in the radial direction of the sleeve 22 and are arranged at a distance of approximately 180 degrees in the circumferential direction of the sleeve 22 to connect the small-diameter tubular portion 23 and the large-diameter tubular portion 24 .
- one connecting portion 25 projects upward from the small-diameter tubular portion 23 and the large-diameter tubular portion 24
- the other connecting portion 25 projects downward from the small-diameter tubular portion 23 and the large-diameter tubular portion 24 .
- the connecting portion 25 comprises a connecting main body portion 25 A, a first leg portion 25 B, and a second leg portion 25 C.
- the connecting main body portion 25 A is formed in a roughly long plate shape with the vertical direction as the plate thickness direction and the front-rear direction as the longitudinal direction.
- the first leg portion 25 B protrudes inward in the radial direction of the sleeve 22 from the intermediate portion in the width direction at the front end portion of the connecting main body portion 25 A, and is connected to the front end portion of the small-diameter tubular portion 23 .
- the second leg portion 25 C protrudes inward in the radial direction of the sleeve 22 from the rear portion of the connecting main body portion 25 A and is connected to the outer peripheral portion of the large-diameter tubular portion 24 .
- the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are connected by the connecting portion 25 .
- the cam hole 26 comprises a plurality of (two places in the present embodiment) first cam hole portions 27 and a plurality of (two places in the present embodiment) second cam hole portions 28 .
- the first cam hole portion 27 extends in a direction in which the sleeve 22 is inclined rearward toward one side in the circumferential direction (the side in the direction of arrow A in FIGS. 5 and 10 ), and the second cam hole portion 28 extends in a direction in which the sleeve 22 is inclined forward toward one side in the circumferential direction.
- the first cam hole portion 27 and the second cam hole portion 28 are alternately arranged in the circumferential direction of the sleeve 22 , and the front ends of the first cam hole portion 27 and the second cam hole portion 28 are connected to each other and the rear ends of the first cam hole portion 27 and the second cam hole portion 28 are connected to each other. Further, the connecting main body portion 25 A of the connecting portion 25 described above is arranged on the outside in the radial direction of the sleeve 22 with respect to the second cam hole portion 28 .
- one side surface (front surface) in the width direction of the first cam hole portion 27 is configured as a small-diameter side first cam surface 27 A, and the other side surface (rear surface) in the width direction of the first cam hole portion 27 is configured as the large-diameter side first cam surface 27 B.
- one side surface in the width direction of the second cam hole portion 28 is configured as the small-diameter side second cam surface 28 A, and the other side surface in the width direction of the second cam hole portion 28 is configured as the large-diameter side second cam surface 28 B.
- the small-diameter side first cam surface 27 A and the small-diameter side second cam surface 28 A are formed by the rear end surface of the small-diameter tubular portion 23
- the large-diameter side first cam surface 27 B and the large-diameter side second cam surface 28 B are formed by the front end surfaces of the large-diameter tubular portion 24 .
- a first holding portion 26 A is formed on the inner peripheral surface of the cam hole 26 on one side in the width direction at the joining portion between the front end portion of the small-diameter side first cam surface 27 A and the front end portion of the small-diameter side second cam surface 28 A.
- the first holding portion 26 A is inclined to the front side toward one side in the circumferential direction of the sleeve 22 when viewed from the radial direction of the sleeve 22 . Further, the inclination angle of the first holding portion 26 A with respect to the circumferential direction of the sleeve 22 is set to be smaller than the inclination angle of the small-diameter side second cam surface 28 A with respect to the circumferential direction of the sleeve 22 .
- the joining portion between the first holding portion 26 A and the small-diameter side first cam surface 27 A is arranged on one side in the circumferential direction of the sleeve 22 with respect to the front end portion of the large-diameter side first cam surface 27 B.
- the first holding portion 26 A is configured as a holding portion that holds the pushrod 30 , which will be described later, at a protruding position.
- a second holding portion 26 B is formed at a joining portion between the rear end portion of the small-diameter side first cam surface 27 A and the rear end portion of the small-diameter side second cam surface 28 A.
- the second holding portion 26 B is formed in a concave shape that is open to the rear side.
- the second holding portion 26 B comprises a holding inclined surface 26 B 1 that is inclined forward toward one side in the circumferential direction of the sleeve 22 , and a rotation restricting surface 26 B 2 extending from the front end of the holding inclined surface 26 B 1 to the rear side and connected to the rear end of the small-diameter side second cam surface 28 A, when viewed from the radial direction of the sleeve 22 .
- the second holding portion 26 B is configured as a holding portion that holds the pushrod 30 , which will be described later, at the pushing position.
- a stopper portion 26 C is formed at a joining portion between the rear end portion of the large-diameter side first cam surface 27 B and the rear end portion of the large-diameter side second cam surface 28 B. That is, the second holding portion 26 B and the stopper portion 26 C are arranged so as to face each other in the front-rear direction.
- the stopper portion 26 C is formed in an uneven shape when viewed from the radial direction of the sleeve 22 .
- stopper portion 26 C comprises a first stopper surface 26 C 1 extending from the rear end of the large-diameter side first cam surface 27 B to the front side, a stopper inclined surface 26 C 2 extending from the front end portion of the first stopper surface 26 C 1 to one side and the rear side in the circumferential direction of the sleeve 22 , a horizontal plane 26 C 3 extending from the rear end of the stopper inclined surface 26 C 2 to one side in the circumferential direction of the sleeve 22 , and a second stopper surface 26 C 4 extending forward from the tip of the horizontal plane 26 C 3 .
- the first stopper surface 26 C 1 of the stopper portion 26 C is arranged at a position overlapping the intermediate portion in the longitudinal direction of the holding inclined surface 26 B 1 of the second holding portion 26 B.
- the rotation restricting surface 26 B 2 of the second holding portion 26 B is arranged at a position overlapping the intermediate portion in the longitudinal direction of the stopper inclined surface 26 C 2 of the stopper portion 26 C.
- the large-diameter tubular portion 24 is formed with an insertion groove 29 for inserting the cam protrusion 32 of the pushrod 30 , which will be described later, at the joining portion with the second leg portion 25 C of the connecting portion 25 .
- the insertion groove 29 penetrates the large-diameter tubular portion 24 , the connecting main body portion 25 A, and the second leg portion 25 C in the front-rear direction. Specifically, the insertion groove 29 penetrates the central portion in the width direction of the connecting main body portion 25 A, and the second leg portion 25 C is divided into two by the insertion groove 29 .
- the front end portion of the insertion groove 29 is arranged at a position overlapping the cam hole 26 (second cam hole portion 28 ) in the radial direction of the sleeve 22 .
- the large-diameter tubular portion 24 is formed in a cylindrical shape that is partially opened outward in the radial direction by the insertion groove 29 .
- a part of the second cam hole portion 28 in the cam hole 26 is opened to the rear side by the insertion groove 29 , and the large-diameter side second cam surface 28 B is divided.
- the groove width of the insertion groove 29 is set to be larger than the width dimension of the first leg portion 25 B.
- the first leg portion 25 B and the insertion groove 29 overlap each other so that the first leg portion 25 B is arranged inside the insertion groove 29 when viewed from the front-rear direction.
- the pushrod 30 is formed in a roughly bottomed cylindrical shape with the front-rear direction as the axial direction and open to the rear side.
- the pushrod 30 is housed inside the sleeve 22 and is supported by the small-diameter tubular portion 23 so as to be movable in the front-rear direction and rotatable around the axis. Further, the front side portion (one side in the axial direction) of the pushrod 30 is inserted into the insertion hole 14 B of the lower case 14 , and the front end portion of the pushrod 30 projects from the pad 18 to the front side.
- a locking portion 30 A is formed at the tip end portion (front end portion) of the pushrod 30 , and the locking portion 30 A is formed in a roughly track-shaped plate shape with the axial direction of the pushrod 30 as the plate thickness direction. Further, on the outer peripheral portion of the pushrod 30 , a constricted portion 30 B having a diameter smaller than that of the pushrod 30 is formed on the rear side of the locking portion 30 A.
- a cam protrusions 32 as a plurality of (two places in the present embodiment) protrusions protruding outward in the radial direction are integrally formed on the outer peripheral portion of the rear end portion of the pushrod 30 .
- the pair of cam protrusions 32 are arranged 180 degrees apart in the circumferential direction of the pushrod 30 .
- the cam protrusion 32 is formed in a roughly trapezoidal block shape when viewed from the radial direction of the pushrod 30 .
- the cam protrusions 32 comprises a front inclined surface 32 A inclined forward toward one side in the rotation direction of the pushrod 30 (the side in the direction of arrow A in FIGS.
- a rear inclined surface 32 B arranged on the rear side of the front inclined surface 32 A and inclined to the rear side toward one side in the rotation direction of the pushrod 30 , a first connecting surface 32 C that extends in the front-rear direction and connects the front end of the front inclined surface 32 A and the rear end of the rear inclined surface 32 B, and a second connecting surface 32 D extending in the front-rear direction and connecting the rear end portion of the front inclined surface 32 A and the front end portion of the rear inclined surface 32 B, when viewed from the radial direction of the pushrod 30 .
- the width dimension of the cam protrusion 32 (the dimension between the first connecting surface 32 C and the second connecting surface 32 D) is set smaller than the width groove dimension of the insertion groove 29 of the sleeve 22 .
- the cam protrusion 32 is arranged in the cam hole 26 of the sleeve 22 through the insertion groove 29 .
- the cam protrusion 32 is arranged in the cam hole 26 so that the tip surface (radial outer side end face of pushrod 30 ) of the cam protrusion 32 slightly protrudes outward in the radial direction with respect to the outer peripheral surface of the large-diameter tubular portion 24 when viewed from the front side (cf. FIG. 8 ).
- a rod-side engaging portion 32 E is formed at the front end portion of the first connecting surface 32 C at the tip end portion of the cam protrusion 32 .
- the rod-side engaging portion 32 E is formed in a roughly rectangular block shape, protrudes from the cam protrusion 32 to one side in the rotation direction of the pushrod 30 , and is arranged on the outer side in the radial direction of the small-diameter tubular portion 23 .
- the spring 34 is configured as a compression coil spring.
- the spring 34 is arranged in the rear end of the sleeve 22 , wherein the front end of the spring 34 is locked to the rear end of the pushrod 30 , and the rear end of the spring 34 is locked to the rear wall of the first accommodating portion 14 A in the lower case 14 .
- the spring 34 urges the pushrod 30 to the front side (one side in the axial direction, also called the protruding direction), and the front end portion (boundary portion between the front inclined surface 32 A and the first connecting surface 32 C) of the cam protrusion 32 of the pushrod 30 comes into contact with one side surface in the width direction of the cam hole 26 .
- a fuel lid (not shown) for opening and closing the fuel filler port of the vehicle is provided on the front side of the pushrod 30 .
- the fuel lid pushes the pushrod 30 into the pushing position so as to close the fuel filler port, the locking portion 30 A of the pushrod 30 engages with the fuel lid, and the closed state of the fuel lid is maintained.
- the pushrod 30 is projected to the protruding position and the closed state of the fuel lid is released.
- the lock mechanism 40 is housed in the second accommodating portion 14 C of the lower case 14 .
- the lock mechanism 40 is configured as a mechanism for restricting the movement of the pushrod 30 arranged at the pushing position to the protruding position.
- the lock mechanism 40 comprises a motor 42 , a detection switch 46 , and a lock member 50 .
- the motor 42 is arranged with the front-rear direction as the axial direction, and the motor body 42 A of the motor 42 is housed in the motor accommodating portion 14 F of the lower case 14 and fixed to the lower case 14 and the upper case 16 . That is, the motor body 42 A is arranged on the left side and the rear side of the sleeve 22 and the pushrod 30 .
- the output shaft 42 B of the motor 42 extends forward from the motor body 42 A and is arranged in the lock member accommodating portion 14 E of the lower case 14 . That is, the output shaft 42 B of the motor 42 is arranged in parallel on the left side of the sleeve 22 and the pushrod 30 .
- One end of the pair of motor terminals 44 is connected to the rear end of the motor body 42 A, wherein the motor terminal 44 is bent into a predetermined shape, and the other end of the motor terminal 44 is arranged inside the connector portion 14 D.
- the motor terminal 44 is electrically connected to the control unit 60 (cf. FIG. 2 ), and the motor 42 is driven by the control unit 60 .
- the detection switch 46 is arranged on the upper side of the motor body 42 A and is fixed to the upper case 16 . That is, the motor body 42 A and the detection switch 46 are arranged at overlapping positions in the front-rear direction and are housed in the second accommodating portion 14 C of the case 12 .
- the detection switch 46 is configured as a push-type switch. Specifically, the detection switch 46 comprises a switch main body 46 A and a switch portion 46 B protruding forward from the switch main body 46 A. One end of a pair of switch terminals 48 is connected to the detection switch 46 , wherein the switch terminal 48 is bent into a predetermined shape, and the other end of the switch terminal 48 is arranged inside the connector portion 14 D.
- the switch terminal 48 is electrically connected to the control unit 60 , and the switch portion 46 B is pressed to the rear side to output an on signal to the control unit 60 .
- the lock member 50 comprises a fixing portion 51 , a locking portion 53 , a switch operating portion 55 , a manual operating portion 56 , and a lock holding portion 57 .
- the fixing portion 51 is formed in a roughly cylindrical shape with the front-rear direction as the axial direction.
- the output shaft 42 B of the motor 42 is fitted into the fixed portion 51 , and the fixed portion 51 is integrally rotatably fixed to the output shaft 42 B.
- the lock member 50 rotates between the unlock position (position shown in FIG. 8B ) and the lock position (position shown in FIG. 8A ) by driving the motor 42 .
- it will be described as an unlock position of the lock member 50 .
- a lock arm 52 is integrally formed on the front end side portion of the fixing portion 51 , and the lock arm 52 extends upward from the fixing portion 51 .
- the lock portion 53 is formed at the tip end portion (upper end portion) of the lock arm 52 and is formed in a roughly rectangular block shape protruding to the right from the lock arm 52 .
- An engaging groove 54 (cf. FIG. 7 ) is formed at the front end of the lock portion 53 , and the engaging groove 54 is open to the lower side and the front side.
- a notch portion 54 A (cf. FIG. 7 ) is formed in the front opening of the engaging groove 54 , and the front opening of the engaging groove 54 is opened to the right by the notch portion 54 A.
- the tip end of the lock portion 53 is arranged in the cam hole 26 of the sleeve 22 , and is arranged adjacent to the cam protrusion 32 of the pushrod 30 at the pushing position on one side in the rotation direction of the pushrod 30 .
- the rod-side engaging portion 32 E of the cam protrusion 32 is set to be arranged in the engaging groove 54 . Therefore, when the pushrod 30 is moved to the rear side, the rod-side engaging portion 32 E engages with the engaging groove 54 , and the movement of the pushrod 30 to the rear side is restricted.
- the switch operating portion 55 is formed in a columnar shape extending rearward from the tip end portion of the lock arm 52 , and the rear end portion of the switch operating portion 55 is bent to the right side.
- the rear end portion of the switch operating portion 55 is configured as a switch pressing portion 55 A.
- an inclined surface 55 B is formed at the right end portion, wherein the inclined surface 55 B is inclined to the front side toward the right side in a plan view.
- the switch operating unit 55 is arranged on the left side of the detection switch 46 in a state where the switch pressing unit 55 A does not press the switch portion 46 B of the detection switch 46 (cf. FIG. 3 ).
- the switch portion 46 B of the detection switch 46 is set to be pressed to the rear side by the rear surface of the switch operating portion 55 .
- the manual operating portion 56 is formed in a roughly rectangular columnar shape extending upward from the tip end portion of the lock arm 52 .
- the manual operating portion 56 is inserted through the operation groove 16 A formed in the upper case 16 , and the tip end portion of the manual operating portion 56 is exposed to the outside of the upper case 16 so that it can be manually operated (cf. FIG. 1 ).
- the lock holding portion 57 is arranged below the fixing portion 51 and is formed in a roughly L-shaped plate shape when viewed from the left side.
- the lock holding portion 57 comprises a rectangular plate-shaped holding main body 57 A extending in the front-rear direction with the vertical direction as the plate thickness direction, and a joining portion 57 B protruding upward from the rear end of the holding main body 57 A, wherein the joining portion 57 B is connected to the fixed portion 51 .
- a contact portion 57 C projecting downward is integrally formed at the tip end portion of the holding main body 57 A, and the contact portion 57 C is formed in a roughly hemispherical shape that is convex downward.
- the lock holding portion 57 is configured to be elastically deformable in the vertical direction. That is, the lock holding portion 57 is configured as a so-called leaf spring. At either the lock position or the unlock position of the lock member 50 , the contact portion 57 C abuts on the raised portion 14 H of the lower case 14 , and the lock holding portion 57 is elastically deformed upward (cf. FIG. 8 ). As a result, the lock member 50 is held at the lock position and the unlock position.
- the cam protrusion 32 of the pushrod 30 arranged at the pushing position is shown by a solid line.
- the cam protrusion 32 described by the two-dot chain line indicates the cam protrusion 32 corresponding to each operating position of the pushrod 30 , and a hyphen is added to the sign of the cam protrusion 32 shown by the two-dot chain line to distinguish it from the cam protrusion 32 shown by the solid line.
- the fuel lid is in a closed state in which the fuel filler port of the vehicle is closed, and the locking portion 30 A of the pushrod 30 is engaged with the fuel lid to maintain the closed state of the fuel lid. Further, in this state, the front end portion of the cam protrusion 32 of the pushrod 30 is arranged in the second holding portion 26 B of the sleeve 22 , and the pushrod 30 is held at the pushing position.
- the front end portion of the cam protrusion 32 comes into contact with the holding inclined surface 26 B 1 of the second holding portion 26 B, and the movement of the pushrod 30 to the front side is restricted, and the movement of the pushrod 30 to the front side is restricted, and the first connecting surface 32 C of the cam protrusion 32 abuts on the rotation restricting surface 26 B 2 of the second holding portion 26 B, and the rotation of the pushrod 30 in one direction in the rotation direction is restricted.
- the lock member 50 is arranged at the lock position, and the lock portion 53 of the lock member 50 and the cam protrusion 32 of the pushrod 30 are engaged with each other (cf. FIGS. 8A and 9 ). As a result, the movement of the pushrod 30 in the pushing direction is restricted by the lock member 50 .
- control unit 60 drives the motor 42 to rotate the lock member 50 from the locked position to the unlocked position (cf. FIG. 8B ).
- the lock portion 53 of the lock member 50 and the cam protrusion 32 of the pushrod 30 are released from the engaged state, and the pushrod 30 is allowed to move in the pushing direction.
- the pushrod 30 When the fuel lid is pushed in the pushing direction after the lock member 50 is rotated to the unlocked position, the pushrod 30 is pushed to the rear side via the fuel lid. As a result, the cam protrusion 32 of the pushrod 30 is displaced to the rear side, and the rear end portion of the cam protrusion 32 comes into contact with the stopper inclined surface 26 C 2 of the sleeve 22 . When the pushrod 30 is further pushed in, the rear end portion of the cam protrusion 32 slides on the stopper inclined surface 26 C 2 and the horizontal plane 26 C 3 of the sleeve 22 , and the pushrod 30 rotates to one side in the rotation direction.
- the cam protrusion 32 When the cam protrusion 32 reaches the second stopper surface 26 C 4 , the front end portion of the cam protrusion 32 is arranged on the rear side of the small-diameter side second cam surface 28 A of the second cam hole portion 28 . Therefore, when the push against the fuel lid is released in this state, the pushrod 30 moves to the front side by the urging force of the spring 34 , and the front end portion of the cam protrusion 32 comes into contact with the small-diameter side second cam surface 28 A. The cam protrusion 32 moves from the rear end to the front end of the second cam hole portion 28 while the front end of the cam protrusion 32 slides on the small-diameter side second cam surface 28 A (cf.
- the pushrod 30 When the fuel lid is open, the pushrod 30 is arranged at the protruding position, and the front end portion of the cam protrusion 32 is in contact with the first holding portion 26 A of the cam hole 26 (cf. the cam protrusion 32 - 4 indicated by the two-dot chain line in FIG. 10 ).
- the fuel lid When the fuel lid is closed in this state, the fuel lid pushes the front end portion of the pushrod 30 to the rear side.
- the pushrod 30 is displaced rearward from the protruding position against the urging force of the spring 34 , and the rear end portion of the cam protrusion 32 comes into contact with the large-diameter side first cam surface 27 B of the first cam hole portion 27 in the cam hole 26 .
- the cam protrusion 32 moves from the front end to the rear end of the first cam hole portion 27 while the rear end of the cam protrusion 32 slides on the large-diameter side first cam surface 27 B (cf. cam protrusion 32 - 5 shown by the two-dot chain line in FIG. 10 ).
- the pushrod 30 moves in the pushing direction while rotating to one side in the rotation direction.
- the locking portion 30 A of the pushrod 30 engages with the fuel lid.
- the first connecting surface 32 C of the cam protrusion 32 abuts on the first stopper surface 26 C 1 of the stopper portion 26 C, and the movement of the cam protrusion 32 to the rear side and the rotation to one side in the rotation direction are restricted (cf. cam protrusion 32 - 6 indicated by the two-dot chain line in FIG. 10 ). Further, in this state, the holding inclined surface 26 B 1 of the second holding portion 26 B in the cam hole 26 is arranged on the front side of the front end portion of the cam protrusion 32 .
- the pushrod 30 is displaced forward by the urging force of the spring 34 , and the front end portion of the cam protrusion 32 abuts on the holding inclined surface 26 B 1 of the second holding portion 26 B and slides along the holding inclined surface 26 B 1 on the front side and one side in the rotational direction.
- the front end portion of the cam protrusion 32 comes into contact with the holding inclined surface 26 B 1 of the second holding portion 26 B and the movement of the pushrod 30 to the front side is restricted, and the first connecting surface 32 C of the cam protrusion 32 comes into contact with the rotation restricting surface 26 B 2 of the second holding portion 26 B and the rotation of the pushrod 30 in one direction in the rotation direction is restricted (cf. the cam protrusion 32 shown by the solid line in FIG. 10 ).
- the control unit 60 drives the motor 42 to rotate the lock member 50 from the unlocked position to the locked position.
- the lock portion 53 of the lock member 50 and the cam protrusion 32 of the pushrod 30 are engaged with each other, and the movement of the pushrod 30 in the pushing direction side and the rotation in one side in the rotation direction are restricted. Therefore, the pushrod 30 is held in the pushing position, and the closed state of the fuel lid is maintained.
- the pushrod 30 of the push-push mechanism 20 is supported by the sleeve 22 so as to be movable in the axial direction and rotatable around the axis.
- the sleeve 22 has a cam hole 26 , and the cam protrusion 32 of the pushrod 30 is inserted into the cam hole 26 so as to be relatively movable.
- the cam protrusion 32 is guided by the cam hole 26 , and the pushrod 30 rotates to one side in the rotation direction.
- the sleeve 22 comprises a small-diameter tubular portion 23 constituting the front portion of the sleeve 22 , a large-diameter tubular portion 24 constituting the rear portion of the sleeve 22 , and a connecting portion 25 that connects the small-diameter tubular portion 23 and the large-diameter tubular portion 24 .
- the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged apart from each other in the axial direction, and the cam hole 26 is arranged between the small-diameter tubular portion 23 and the large-diameter tubular portion 24 . That is, the sleeve 22 is configured as a single member.
- the sleeve 22 is composed of two members of a small-diameter tubular portion 23 composing one side surface in the width direction of the cam hole 26 and a large-diameter tubular portion 24 composing the other side surface in the width direction of the cam hole 26 , and the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are respectively assembled to the case 12 , for example, it is possible to prevent both end surfaces in the width direction of the cam hole 26 from shifting in the circumferential direction of the sleeve 22 . As a result, the cam hole 26 that guides the movement of the pushrod 30 can be formed with high accuracy. Therefore, the operability of the pushrod 30 can be improved.
- the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged at positions where they do not overlap when viewed from the axial direction of the sleeve 22 .
- the small-diameter tubular portion 23 is arranged inside in the radial direction of the large-diameter tubular portion 24 , and one side surface in the width direction and the other side surface in the width direction of the cam hole 26 are arranged so as to be offset in the radial direction of the sleeve 22 .
- the mold can be pulled out on both sides in the axial direction of the sleeve 22 by setting the secant line of the mold at the portion of the cam hole 26 . That is, it is possible to prevent the one side surface in the width direction and the other side surface in the width direction of the cam hole 26 from forming an undercut shape with each other. Therefore, even when the sleeve 22 having the cam hole 26 is configured as a single member, the sleeve 22 can be satisfactorily molded while suppressing the complexity of the mold structure for molding the sleeve 22 .
- the connecting portion 25 of sleeve 22 comprises a connecting main body portion 25 A extending in the front-rear direction, a first leg portion 25 B that connects the front end portion of the connecting main body portion 25 A and the front end portion of the small-diameter tubular portion 23 , and a second leg portion 25 C that connects the rear portion of the connecting main body portion 25 A and the large-diameter tubular portion 24 .
- the sleeve 22 can be configured as a single member by connecting the small-diameter tubular portion 23 and the large-diameter tubular portion 24 separated in the front-rear direction, and the cam hole 26 can be formed between the small-diameter tubular portion 23 and the large-diameter tubular portion 24 .
- the large-diameter tubular portion 24 is formed with an insertion groove 29 in which a cam protrusion 32 can be inserted, and the insertion groove 29 penetrates in the front-rear direction and communicates with the cam hole 26 .
- the cam protrusion 32 can be inserted into the cam hole 26 from the insertion groove 29 by inserting the pushrod 30 into the sleeve 22 from the rear side. Therefore, the assembling property of the pushrod 30 to the sleeve 22 can be improved.
- the insertion groove 29 communicates with the second cam hole portion 28 in the cam hole 26 . That is, the rear surface (large-diameter side second cam surface 28 B) of the second cam hole portion 28 is divided by the insertion groove 29 . Further, the pushrod 30 is urged to the front side by the spring 34 . As a result, when the pushrod 30 is moved from the pushing position to the protruding position, the cam protrusion 32 comes into contact with the front surface of the second cam hole portion 28 (small-diameter side the second cam surface 28 A) and is guided to the second cam hole portion 28 , due to the urging force of the spring 34 .
- the insertion groove 29 is formed on the large-diameter side second cam surface 28 B that does not guide the cam protrusion 32 when the pushrod 30 is moved to the protruding position.
- the insertion groove 29 can be formed in the sleeve 22 without affecting the reciprocating movement of the pushrod 30 , and the cam protrusion 32 can be arranged in the cam hole 26 by the insertion groove 29 .
- the diameter of the small-diameter tubular portion 23 is set to be smaller than the diameter of the large-diameter tubular portion 24 , and the first leg portion 25 B and the insertion groove 29 are arranged so as to overlap each other when viewed from the axial direction of the sleeve 22 . More specifically, when viewed from the front side, the first leg portion 25 B is arranged inside the insertion groove 29 . Thereby, the insertion groove 29 can prevent the first leg portion 25 B from becoming an undercut shape in the axial direction of the sleeve 22 , for example. Therefore, the complexity of the mold for molding the sleeve 22 can be further suppressed, and the moldability of the sleeve 22 can be improved.
- the diameter of the small-diameter tubular portion 23 configuring the front end portion of the sleeve 22 is set to be smaller than the diameter of the large-diameter tubular portion 24 configuring the rear end portion of the sleeve 22 in the present embodiment
- the diameter of the tubular portion configuring the front end portion of the sleeve 22 may be set to be larger than the diameter of the tubular portion configuring the rear end portion of the sleeve 22
- the pushrod 30 may be configured to be supported by the rear end portion of the sleeve 22 .
- the position of the insertion groove 29 is not limited to this.
- the insertion groove 29 may be formed in the large-diameter tubular portion 24 at a position shifted from the connecting portion 25 in the circumferential direction of the sleeve 22 . That is, the insertion groove 29 may be formed only in the large-diameter tubular portion 24 .
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Abstract
To improve the operability of the pushrod, in the lid opening and closing device, the sleeve supports the pushrod, and the cam protrusion of the pushrod is inserted into the cam hole of the sleeve so as to be relatively movable. When the pushrod reciprocates in the axial direction, the cam hole guides the cam protrusion, and the pushrod rotates. The sleeve has a small-diameter tubular portion, a large-diameter tubular portion, and a connecting portion that connects them. These two tubular portions are separated in the axial direction, and the cam hole is arranged between them. That is, the sleeve is composed of a single member. Thus, compared with the case where the sleeve is composed of two members, small-diameter and large-diameter tubular portion, that are assembled to the case, it is possible to suppress the displacement of both end faces in the width direction of the cam hole.
Description
- This application claims the benefit of Japanese Application No. 2020-190609, filed Nov. 17, 2020, the entire disclosure of which is hereby incorporated herein by reference.
- The present invention relates to a lid opening and closing device.
- In the lid opening and closing device described in Patent Document 1 below, the fuel lid is opened and closed by a so-called push-push mechanism. This push-push mechanism holds the moving member (pushrod) at the pushing position and closes the fuel lid by pushing the fuel lid in the closing direction, and the fuel lid is opened by pushing the fuel lid again and projecting the moving member.
- Further, a protrusion is formed in the moving member, and the protrusion is inserted into a guide groove (cam hole) of the main body so as to be relatively movable. As a result, when the moving member moves in the axial direction, the protrusion is guided by the guide groove, and the moving member moves in the axial direction while rotating.
- [Patent Document 1]
- International Publication No. 2018/038034.
- However, the lid opening and closing device has room for improvement in the following points. That is, in the lid opening and closing device, the cylindrical main body is composed of two members, a first main body and a second main body, which are divided into two in the axial direction, and a guide groove is formed between the first main body and the second main body. Therefore, for example, when the first main body and the second main body are assembled so as to be displaced in the circumferential direction of the main body, the shape of the guide groove is formed to be different from the normal shape. In this case, for example, the protrusion may move in the cam groove in the opposite direction. This may reduce the operating performance of the moving member.
- It is an object of the present invention to provide a lid opening and closing device capable of improving the operability of a pushrod in consideration of the above facts.
- At least one embodiment of the present invention is a lid opening and closing device comprising: a pushrod configured to be able to make a reciprocating movement in the axial direction and has a protrusion on the outer circumference; a tubular sleeve that accommodates the pushrod so that it can be moved in the axial direction and rotatable around the axis; wherein, the sleeve comprises: a first sleeve configuring the one side portion in the axial direction of the sleeve; a second sleeve that is arranged apart on the other side in the axial direction of the first sleeve and configuring the other side portion in the axial direction of the sleeve; a connecting portion that connects the first sleeve and the second sleeve; a cam hole that is arranged between the first sleeve and the second sleeve and into which the protrusion is inserted so as to be relatively movable, and guides the protrusion and rotates the pushrod to one side in the rotation direction during the reciprocating movement of the pushrod in the axial direction, wherein the first sleeve and the second sleeve are arranged at positions where they do not overlap when viewed from the axial direction of the sleeve.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the connecting portion comprises: a connecting main body portion extending in the axial direction on the outer side in the radial direction of the first sleeve and the second sleeve; a first leg portion that connects one end of the connecting main body portion and the first sleeve; and a second leg portion that connects the other end of the connecting main body portion and the second sleeve.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the second sleeve is formed with an insertion groove configured so that the protrusion can be inserted, wherein the insertion groove penetrates the second sleeve in the axial direction and communicates with the cam hole.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the pushrod is urged to one side in the axial direction by an urging member, the cam hole comprises a first cam hole portion that guides the protrusion when the pushrod moves to the other side in the axial direction, and a second cam hole portion that guides the protrusion when the pushrod moves to one side in the axial direction, wherein the second cam hole portion communicates with the insertion groove.
- At least one embodiment of the present invention is the lid opening and closing device, wherein the diameter of the first sleeve is set smaller than the diameter of the second sleeve, the insertion groove penetrates the connecting main body portion in the radial direction of the sleeve, and the first leg portion and the insertion groove are arranged so as to overlap each other, when viewed from the axial direction of the sleeve.
- According to one or more embodiments of the present invention, the operability of the pushrod can be improved.
-
FIG. 1 is a perspective view which shows the lid opening and closing device which concerns on this embodiment. -
FIG. 2 is an exploded perspective view of the lid opening and closing device shown inFIG. 1 . -
FIG. 3 is a plan view which shows the lid opening and closing device shown inFIG. 1 in a state where the upper case is removed. -
FIG. 4 is a plan view showing a state in which the pushrod of the lid opening and closing device shown inFIG. 3 is pushed into the pushing position. -
FIG. 5 is an exploded perspective view of the push-push mechanism shown inFIG. 2 . -
FIG. 6 is a trihedral figure of the sleeve shown inFIG. 5 . -
FIG. 7 is a perspective view of the lock member shown inFIG. 2 . -
FIG. 8A is a front view seen from the front side showing a state in which the pushrod is arranged at the pushing position and the locking member is arranged at the locking position, andFIG. 8B is a front view showing a state in which the pushrod is arranged at the protruding position and the lock member is arranged at the unlocked position. -
FIG. 9 is a cross-sectional view (enlarged cross-sectional view taken along line 9-9 ofFIG. 8A ) showing an engaged state between the cam protrusion and the lock portion shown inFIG. 8A . -
FIG. 10 is a developed view of the cam hole of the sleeve shown inFIG. 5 . - Hereinafter, the lid opening and
closing device 10 according to the present embodiment will be described with reference to the drawings. The arrows UP, FR, and RH, which are appropriately shown in the drawings, indicate the upper side, the front side, and the right side of the lid opening andclosing device 10, respectively. In the following description, the vertical, front-back, and left-right directions of the lid opening andclosing device 10 are used to indicate the up-down direction, front-back direction, and left-right direction of the lid opening andclosing device 10 unless otherwise specified. - As shown in
FIGS. 1 and 2 , the lid opening andclosing device 10 is configured as an opening and closing device for a fuel lid (not shown) that opens and closes a fuel filler port of a vehicle (automobile). The lid opening andclosing device 10 comprises acase 12 that form an outer shell of the lid opening andclosing device 10, a push-push mechanism 20, and alock mechanism 40. - Further, as will be described in detail later, the push-
push mechanism 20 has apushrod 30 whose axial direction is the front-rear direction, and thepushrod 30 is configured to be movable (can move forward and backward) between the protruding position shown inFIG. 3 and the pushing position pushed backward from the protruding position (cf.FIG. 4 ). By arranging thepushrod 30 at the protruding position, the fuel lid is set to be in an open state in which the fuel filler port is opened. On the other hand, when the fuel lid is in the closed state with the fuel filler port closed, thepushrod 30 is pushed from the protruding position to the pushing position by the fuel lid, and the lid opening andclosing device 10 maintains the closed state of the fuel lid. Hereinafter, each configuration of the lid opening andclosing device 10 will be described. - As shown in
FIGS. 1 to 4 , thecase 12 is formed in a roughly U-shaped box shape that is open to the right side in a plan view seen from above. Thecase 12 is divided into two in the vertical direction. Specifically, thecase 12 comprises alower case 14 that constitutes a lower portion of thecase 12 and anupper case 16 that constitutes an upper portion of thecase 12. - The
lower case 14 is formed in a box shape that is open upward. The front portion of the right portion of thelower case 14 is configured as a firstaccommodating portion 14A for accommodating the push-push mechanism 20 described later. Acircular insertion hole 14B is formed through the front wall of the first accommodatingportion 14A. Further, the opening edge portion on the front side of theinsertion hole 14B protrudes to the front side, and acylindrical pad 18 is fitted in the opening edge portion. - The left portion of the
lower case 14 is configured as a secondaccommodating portion 14C for accommodating thelock mechanism 40 described later. Aconnector portion 14D projecting to the right side is formed at the rear end portion of the secondaccommodating portion 14C, and theconnector portion 14D is arranged on the rear side of the firstaccommodating portion 14A and is opened to the right side. The front portion of the secondaccommodating portion 14C is configured as the lockmember accommodating portion 14E, the rear portion of the secondaccommodating portion 14C is configured as amotor accommodating portion 14F, and the lockmember accommodating portion 14E and themotor accommodating portion 14F are partitioned by apartition wall 14G. A raisedportion 14H that rises upward is formed on the front portion of the bottom surface of the lockmember accommodating portion 14E, and thelock member 50, which will be described later, is held by the raisedportion 14H (cf.FIGS. 3, 4, and 8 ). - The
upper case 16 is formed in a plate shape with the vertical direction as the plate thickness direction, and formed so that the outer shape of theupper case 16 is similar to the outer shape of thelower case 14 in a plan view. Theupper case 16 is assembled to thelower case 14 by claw fitting to close the opening of thelower case 14. Further, a part of theupper case 16 is raised upward corresponding to the push-push mechanism 20 and thelock mechanism 40, which will be described later. - As shown in
FIGS. 2 to 6 , the push-push mechanism 20 includes asleeve 22, apushrod 30, and aspring 34 as an urging member. - The
sleeve 22 is made of resin and is formed in a roughly cylindrical shape with the front-rear direction as the axial direction as a whole. Thesleeve 22 is arranged coaxially with theinsertion hole 14B in the firstaccommodating portion 14A of thecase 12, and is fixed to thecase 12 by theupper case 16 and thelower case 14. Thesleeve 22 comprises a small-diameter tubular portion 23 as the first sleeve constituting the front portion (one side portion in the axial direction) of thesleeve 22, a large-diameter tubular portion 24 as a second sleeve constituting the rear portion (the other side portion in the axial direction) of thesleeve 22, and a pair of connectingportions 25 for connecting the small-diameter tubular portion 23 and the large-diameter tubular portion 24. The small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged apart from each other in the front-rear direction. As a result, acam hole 26 is formed between the small-diameter tubular portion 23 and the large-diameter tubular portion 24 on the outer peripheral wall of thesleeve 22, and thecam hole 26 is formed over the entire circumference of thesleeve 22 in the circumferential direction. Thecam hole 26 guides the movement of thepushrod 30, which will be described later. - The diameter of the small-
diameter tubular portion 23 is set smaller than the diameter of the large-diameter tubular portion 24, and the small-diameter tubular portion 23 is arranged inside in the radial direction of the large-diameter tubular portion 24 when viewed from the axial direction of thesleeve 22. Specifically, the outer diameter of the small-diameter tubular portion 23 coincides with the inner diameter of the large-diameter tubular portion 24. That is, the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged at positions where they do not overlap when viewed from the axial direction of thesleeve 22. - The pair of connecting
portions 25 are arranged on the outer side in the radial direction of thesleeve 22 and are arranged at a distance of approximately 180 degrees in the circumferential direction of thesleeve 22 to connect the small-diameter tubular portion 23 and the large-diameter tubular portion 24. Specifically, one connectingportion 25 projects upward from the small-diameter tubular portion 23 and the large-diameter tubular portion 24, and the other connectingportion 25 projects downward from the small-diameter tubular portion 23 and the large-diameter tubular portion 24. The connectingportion 25 comprises a connectingmain body portion 25A, afirst leg portion 25B, and asecond leg portion 25C. - The connecting
main body portion 25A is formed in a roughly long plate shape with the vertical direction as the plate thickness direction and the front-rear direction as the longitudinal direction. Thefirst leg portion 25B protrudes inward in the radial direction of thesleeve 22 from the intermediate portion in the width direction at the front end portion of the connectingmain body portion 25A, and is connected to the front end portion of the small-diameter tubular portion 23. Thesecond leg portion 25C protrudes inward in the radial direction of thesleeve 22 from the rear portion of the connectingmain body portion 25A and is connected to the outer peripheral portion of the large-diameter tubular portion 24. As a result, the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are connected by the connectingportion 25. - As shown in
FIGS. 5 and 10 , thecam hole 26 comprises a plurality of (two places in the present embodiment) firstcam hole portions 27 and a plurality of (two places in the present embodiment) secondcam hole portions 28. The firstcam hole portion 27 extends in a direction in which thesleeve 22 is inclined rearward toward one side in the circumferential direction (the side in the direction of arrow A inFIGS. 5 and 10 ), and the secondcam hole portion 28 extends in a direction in which thesleeve 22 is inclined forward toward one side in the circumferential direction. The firstcam hole portion 27 and the secondcam hole portion 28 are alternately arranged in the circumferential direction of thesleeve 22, and the front ends of the firstcam hole portion 27 and the secondcam hole portion 28 are connected to each other and the rear ends of the firstcam hole portion 27 and the secondcam hole portion 28 are connected to each other. Further, the connectingmain body portion 25A of the connectingportion 25 described above is arranged on the outside in the radial direction of thesleeve 22 with respect to the secondcam hole portion 28. - As shown in
FIG. 10 , one side surface (front surface) in the width direction of the firstcam hole portion 27 is configured as a small-diameter sidefirst cam surface 27A, and the other side surface (rear surface) in the width direction of the firstcam hole portion 27 is configured as the large-diameter sidefirst cam surface 27B. Further, one side surface in the width direction of the secondcam hole portion 28 is configured as the small-diameter sidesecond cam surface 28A, and the other side surface in the width direction of the secondcam hole portion 28 is configured as the large-diameter sidesecond cam surface 28B. As a result, the small-diameter sidefirst cam surface 27A and the small-diameter sidesecond cam surface 28A are formed by the rear end surface of the small-diameter tubular portion 23, and the large-diameter sidefirst cam surface 27B and the large-diameter sidesecond cam surface 28B are formed by the front end surfaces of the large-diameter tubular portion 24. - A
first holding portion 26A is formed on the inner peripheral surface of thecam hole 26 on one side in the width direction at the joining portion between the front end portion of the small-diameter sidefirst cam surface 27A and the front end portion of the small-diameter sidesecond cam surface 28A. Thefirst holding portion 26A is inclined to the front side toward one side in the circumferential direction of thesleeve 22 when viewed from the radial direction of thesleeve 22. Further, the inclination angle of thefirst holding portion 26A with respect to the circumferential direction of thesleeve 22 is set to be smaller than the inclination angle of the small-diameter sidesecond cam surface 28A with respect to the circumferential direction of thesleeve 22. The joining portion between thefirst holding portion 26A and the small-diameter sidefirst cam surface 27A is arranged on one side in the circumferential direction of thesleeve 22 with respect to the front end portion of the large-diameter sidefirst cam surface 27B. Thefirst holding portion 26A is configured as a holding portion that holds thepushrod 30, which will be described later, at a protruding position. - On the inner peripheral surface of the
cam hole 26 on one side in the width direction, asecond holding portion 26B is formed at a joining portion between the rear end portion of the small-diameter sidefirst cam surface 27A and the rear end portion of the small-diameter sidesecond cam surface 28A. Thesecond holding portion 26B is formed in a concave shape that is open to the rear side. Specifically, thesecond holding portion 26B comprises a holding inclined surface 26B1 that is inclined forward toward one side in the circumferential direction of thesleeve 22, and a rotation restricting surface 26B2 extending from the front end of the holding inclined surface 26B1 to the rear side and connected to the rear end of the small-diameter sidesecond cam surface 28A, when viewed from the radial direction of thesleeve 22. Thesecond holding portion 26B is configured as a holding portion that holds thepushrod 30, which will be described later, at the pushing position. - On the inner peripheral surface of the
cam hole 26 on the other side in the width direction, astopper portion 26C is formed at a joining portion between the rear end portion of the large-diameter sidefirst cam surface 27B and the rear end portion of the large-diameter sidesecond cam surface 28B. That is, thesecond holding portion 26B and thestopper portion 26C are arranged so as to face each other in the front-rear direction. Thestopper portion 26C is formed in an uneven shape when viewed from the radial direction of thesleeve 22. Specifically,stopper portion 26C comprises a first stopper surface 26C1 extending from the rear end of the large-diameter sidefirst cam surface 27B to the front side, a stopper inclined surface 26C2 extending from the front end portion of the first stopper surface 26C1 to one side and the rear side in the circumferential direction of thesleeve 22, a horizontal plane 26C3 extending from the rear end of the stopper inclined surface 26C2 to one side in the circumferential direction of thesleeve 22, and a second stopper surface 26C4 extending forward from the tip of the horizontal plane 26C3. In the circumferential direction of thesleeve 22, the first stopper surface 26C1 of thestopper portion 26C is arranged at a position overlapping the intermediate portion in the longitudinal direction of the holding inclined surface 26B1 of thesecond holding portion 26B. Further, in the circumferential direction of thesleeve 22, the rotation restricting surface 26B2 of thesecond holding portion 26B is arranged at a position overlapping the intermediate portion in the longitudinal direction of the stopper inclined surface 26C2 of thestopper portion 26C. - As shown in
FIGS. 5, 6, and 10 , the large-diameter tubular portion 24 is formed with aninsertion groove 29 for inserting thecam protrusion 32 of thepushrod 30, which will be described later, at the joining portion with thesecond leg portion 25C of the connectingportion 25. Theinsertion groove 29 penetrates the large-diameter tubular portion 24, the connectingmain body portion 25A, and thesecond leg portion 25C in the front-rear direction. Specifically, theinsertion groove 29 penetrates the central portion in the width direction of the connectingmain body portion 25A, and thesecond leg portion 25C is divided into two by theinsertion groove 29. Further, the front end portion of theinsertion groove 29 is arranged at a position overlapping the cam hole 26 (second cam hole portion 28) in the radial direction of thesleeve 22. As a result, the large-diameter tubular portion 24 is formed in a cylindrical shape that is partially opened outward in the radial direction by theinsertion groove 29. Further, a part of the secondcam hole portion 28 in thecam hole 26 is opened to the rear side by theinsertion groove 29, and the large-diameter sidesecond cam surface 28B is divided. - Further, the groove width of the
insertion groove 29 is set to be larger than the width dimension of thefirst leg portion 25B. Thefirst leg portion 25B and theinsertion groove 29 overlap each other so that thefirst leg portion 25B is arranged inside theinsertion groove 29 when viewed from the front-rear direction. - As shown in
FIGS. 1-5 , thepushrod 30 is formed in a roughly bottomed cylindrical shape with the front-rear direction as the axial direction and open to the rear side. Thepushrod 30 is housed inside thesleeve 22 and is supported by the small-diameter tubular portion 23 so as to be movable in the front-rear direction and rotatable around the axis. Further, the front side portion (one side in the axial direction) of thepushrod 30 is inserted into theinsertion hole 14B of thelower case 14, and the front end portion of thepushrod 30 projects from thepad 18 to the front side. - A locking
portion 30A is formed at the tip end portion (front end portion) of thepushrod 30, and the lockingportion 30A is formed in a roughly track-shaped plate shape with the axial direction of thepushrod 30 as the plate thickness direction. Further, on the outer peripheral portion of thepushrod 30, aconstricted portion 30B having a diameter smaller than that of thepushrod 30 is formed on the rear side of the lockingportion 30A. - As shown in
FIG. 9 , a cam protrusions 32 as a plurality of (two places in the present embodiment) protrusions protruding outward in the radial direction are integrally formed on the outer peripheral portion of the rear end portion of thepushrod 30. The pair ofcam protrusions 32 are arranged 180 degrees apart in the circumferential direction of thepushrod 30. Thecam protrusion 32 is formed in a roughly trapezoidal block shape when viewed from the radial direction of thepushrod 30. Specifically, the cam protrusions 32 comprises a frontinclined surface 32A inclined forward toward one side in the rotation direction of the pushrod 30 (the side in the direction of arrow A inFIGS. 5 and 9 ), a rearinclined surface 32B arranged on the rear side of the frontinclined surface 32A and inclined to the rear side toward one side in the rotation direction of thepushrod 30, a first connecting surface 32C that extends in the front-rear direction and connects the front end of the frontinclined surface 32A and the rear end of the rearinclined surface 32B, and a second connectingsurface 32D extending in the front-rear direction and connecting the rear end portion of the frontinclined surface 32A and the front end portion of the rearinclined surface 32B, when viewed from the radial direction of thepushrod 30. - The width dimension of the cam protrusion 32 (the dimension between the first connecting surface 32C and the second connecting
surface 32D) is set smaller than the width groove dimension of theinsertion groove 29 of thesleeve 22. By inserting thepushrod 30 into thesleeve 22 from the rear side, thecam protrusion 32 is arranged in thecam hole 26 of thesleeve 22 through theinsertion groove 29. Further, thecam protrusion 32 is arranged in thecam hole 26 so that the tip surface (radial outer side end face of pushrod 30) of thecam protrusion 32 slightly protrudes outward in the radial direction with respect to the outer peripheral surface of the large-diameter tubular portion 24 when viewed from the front side (cf.FIG. 8 ). - Further, a rod-
side engaging portion 32E is formed at the front end portion of the first connecting surface 32C at the tip end portion of thecam protrusion 32. The rod-side engaging portion 32E is formed in a roughly rectangular block shape, protrudes from thecam protrusion 32 to one side in the rotation direction of thepushrod 30, and is arranged on the outer side in the radial direction of the small-diameter tubular portion 23. - As shown in
FIGS. 3-5 , thespring 34 is configured as a compression coil spring. Thespring 34 is arranged in the rear end of thesleeve 22, wherein the front end of thespring 34 is locked to the rear end of thepushrod 30, and the rear end of thespring 34 is locked to the rear wall of the firstaccommodating portion 14A in thelower case 14. As a result, thespring 34 urges thepushrod 30 to the front side (one side in the axial direction, also called the protruding direction), and the front end portion (boundary portion between the frontinclined surface 32A and the first connecting surface 32C) of thecam protrusion 32 of thepushrod 30 comes into contact with one side surface in the width direction of thecam hole 26. On the other hand, by pressing thepushrod 30 to the rear side (the other side in the axial direction, also called the pushing direction) against the urging force of thespring 34, the rear end portion (boundary portion between the rearinclined surface 32B and the first connecting surface 32C) of thecam protrusion 32 comes into contact with the other side surface in the width direction of thecam hole 26. - Due to the urging force of the
spring 34, thecam protrusion 32 is held by thesecond holding portion 26B of thecam hole 26 at the pushing position of thepushrod 30, and thecam protrusion 32 is held by thefirst holding portion 26A of thecam hole 26 at the protruding position of thepushrod 30. Further, a fuel lid (not shown) for opening and closing the fuel filler port of the vehicle is provided on the front side of thepushrod 30. When the fuel lid pushes thepushrod 30 into the pushing position so as to close the fuel filler port, the lockingportion 30A of thepushrod 30 engages with the fuel lid, and the closed state of the fuel lid is maintained. On the other hand, when the fuel lid is pushed in at the pushing position of thepushrod 30, thepushrod 30 is projected to the protruding position and the closed state of the fuel lid is released. - As shown in
FIGS. 2-4 , thelock mechanism 40 is housed in the secondaccommodating portion 14C of thelower case 14. Thelock mechanism 40 is configured as a mechanism for restricting the movement of thepushrod 30 arranged at the pushing position to the protruding position. Thelock mechanism 40 comprises amotor 42, adetection switch 46, and alock member 50. - The
motor 42 is arranged with the front-rear direction as the axial direction, and themotor body 42A of themotor 42 is housed in themotor accommodating portion 14F of thelower case 14 and fixed to thelower case 14 and theupper case 16. That is, themotor body 42A is arranged on the left side and the rear side of thesleeve 22 and thepushrod 30. Theoutput shaft 42B of themotor 42 extends forward from themotor body 42A and is arranged in the lockmember accommodating portion 14E of thelower case 14. That is, theoutput shaft 42B of themotor 42 is arranged in parallel on the left side of thesleeve 22 and thepushrod 30. One end of the pair ofmotor terminals 44 is connected to the rear end of themotor body 42A, wherein themotor terminal 44 is bent into a predetermined shape, and the other end of themotor terminal 44 is arranged inside theconnector portion 14D. Themotor terminal 44 is electrically connected to the control unit 60 (cf.FIG. 2 ), and themotor 42 is driven by thecontrol unit 60. - The
detection switch 46 is arranged on the upper side of themotor body 42A and is fixed to theupper case 16. That is, themotor body 42A and thedetection switch 46 are arranged at overlapping positions in the front-rear direction and are housed in the secondaccommodating portion 14C of thecase 12. Thedetection switch 46 is configured as a push-type switch. Specifically, thedetection switch 46 comprises a switchmain body 46A and aswitch portion 46B protruding forward from the switchmain body 46A. One end of a pair ofswitch terminals 48 is connected to thedetection switch 46, wherein theswitch terminal 48 is bent into a predetermined shape, and the other end of theswitch terminal 48 is arranged inside theconnector portion 14D. Theswitch terminal 48 is electrically connected to thecontrol unit 60, and theswitch portion 46B is pressed to the rear side to output an on signal to thecontrol unit 60. - As shown in
FIGS. 2-4, 7, and 8 , thelock member 50 comprises a fixingportion 51, a lockingportion 53, aswitch operating portion 55, amanual operating portion 56, and alock holding portion 57. - The fixing
portion 51 is formed in a roughly cylindrical shape with the front-rear direction as the axial direction. Theoutput shaft 42B of themotor 42 is fitted into the fixedportion 51, and the fixedportion 51 is integrally rotatably fixed to theoutput shaft 42B. As a result, thelock member 50 rotates between the unlock position (position shown inFIG. 8B ) and the lock position (position shown inFIG. 8A ) by driving themotor 42. In the following description, it will be described as an unlock position of thelock member 50. Further, alock arm 52 is integrally formed on the front end side portion of the fixingportion 51, and thelock arm 52 extends upward from the fixingportion 51. - The
lock portion 53 is formed at the tip end portion (upper end portion) of thelock arm 52 and is formed in a roughly rectangular block shape protruding to the right from thelock arm 52. An engaging groove 54 (cf.FIG. 7 ) is formed at the front end of thelock portion 53, and the engaginggroove 54 is open to the lower side and the front side. Further, anotch portion 54A (cf.FIG. 7 ) is formed in the front opening of the engaginggroove 54, and the front opening of the engaginggroove 54 is opened to the right by thenotch portion 54A. - As shown in
FIGS. 8A and 9 , at the lock position of thelock member 50, the tip end of thelock portion 53 is arranged in thecam hole 26 of thesleeve 22, and is arranged adjacent to thecam protrusion 32 of thepushrod 30 at the pushing position on one side in the rotation direction of thepushrod 30. As a result, it is configured that the rotation of thepushrod 30 in the pushing position to one side in the rotation direction is restricted. Further, at the lock position of thelock member 50, the rod-side engaging portion 32E of thecam protrusion 32 is set to be arranged in the engaginggroove 54. Therefore, when thepushrod 30 is moved to the rear side, the rod-side engaging portion 32E engages with the engaginggroove 54, and the movement of thepushrod 30 to the rear side is restricted. - As shown in
FIGS. 3, 4, and 7 , theswitch operating portion 55 is formed in a columnar shape extending rearward from the tip end portion of thelock arm 52, and the rear end portion of theswitch operating portion 55 is bent to the right side. The rear end portion of theswitch operating portion 55 is configured as aswitch pressing portion 55A. Further, on the rear surface of theswitch pressing portion 55A, an inclined surface 55B is formed at the right end portion, wherein the inclined surface 55B is inclined to the front side toward the right side in a plan view. At the unlocked position of thelock member 50, theswitch operating unit 55 is arranged on the left side of thedetection switch 46 in a state where theswitch pressing unit 55A does not press theswitch portion 46B of the detection switch 46 (cf.FIG. 3 ). On the other hand, at the lock position of thelock member 50, theswitch portion 46B of thedetection switch 46 is set to be pressed to the rear side by the rear surface of theswitch operating portion 55. - The
manual operating portion 56 is formed in a roughly rectangular columnar shape extending upward from the tip end portion of thelock arm 52. Themanual operating portion 56 is inserted through theoperation groove 16A formed in theupper case 16, and the tip end portion of themanual operating portion 56 is exposed to the outside of theupper case 16 so that it can be manually operated (cf.FIG. 1 ). - As shown in
FIGS. 2, 7, and 8 , thelock holding portion 57 is arranged below the fixingportion 51 and is formed in a roughly L-shaped plate shape when viewed from the left side. Specifically, thelock holding portion 57 comprises a rectangular plate-shaped holdingmain body 57A extending in the front-rear direction with the vertical direction as the plate thickness direction, and a joiningportion 57B protruding upward from the rear end of the holdingmain body 57A, wherein the joiningportion 57B is connected to the fixedportion 51. Acontact portion 57C projecting downward is integrally formed at the tip end portion of the holdingmain body 57A, and thecontact portion 57C is formed in a roughly hemispherical shape that is convex downward. Further, thelock holding portion 57 is configured to be elastically deformable in the vertical direction. That is, thelock holding portion 57 is configured as a so-called leaf spring. At either the lock position or the unlock position of thelock member 50, thecontact portion 57C abuts on the raisedportion 14H of thelower case 14, and thelock holding portion 57 is elastically deformed upward (cf.FIG. 8 ). As a result, thelock member 50 is held at the lock position and the unlock position. - Next, the operation and effect of the present embodiment will be described while explaining the operation of the lid opening and
closing device 10 with reference toFIG. 10 . InFIG. 10 , thecam protrusion 32 of thepushrod 30 arranged at the pushing position is shown by a solid line. Further, thecam protrusion 32 described by the two-dot chain line indicates thecam protrusion 32 corresponding to each operating position of thepushrod 30, and a hyphen is added to the sign of thecam protrusion 32 shown by the two-dot chain line to distinguish it from thecam protrusion 32 shown by the solid line. - (Operation of the
Pushrod 30 from the Pushing Position to the Protruding Position) - At the pushing position of the
pushrod 30, the fuel lid is in a closed state in which the fuel filler port of the vehicle is closed, and the lockingportion 30A of thepushrod 30 is engaged with the fuel lid to maintain the closed state of the fuel lid. Further, in this state, the front end portion of thecam protrusion 32 of thepushrod 30 is arranged in thesecond holding portion 26B of thesleeve 22, and thepushrod 30 is held at the pushing position. Specifically, the front end portion of thecam protrusion 32 comes into contact with the holding inclined surface 26B1 of thesecond holding portion 26B, and the movement of thepushrod 30 to the front side is restricted, and the movement of thepushrod 30 to the front side is restricted, and the first connecting surface 32C of thecam protrusion 32 abuts on the rotation restricting surface 26B2 of thesecond holding portion 26B, and the rotation of thepushrod 30 in one direction in the rotation direction is restricted. Further, in this state, thelock member 50 is arranged at the lock position, and thelock portion 53 of thelock member 50 and thecam protrusion 32 of thepushrod 30 are engaged with each other (cf.FIGS. 8A and 9 ). As a result, the movement of thepushrod 30 in the pushing direction is restricted by thelock member 50. - In this state, the
control unit 60 drives themotor 42 to rotate thelock member 50 from the locked position to the unlocked position (cf.FIG. 8B ). As a result, thelock portion 53 of thelock member 50 and thecam protrusion 32 of thepushrod 30 are released from the engaged state, and thepushrod 30 is allowed to move in the pushing direction. - When the fuel lid is pushed in the pushing direction after the
lock member 50 is rotated to the unlocked position, thepushrod 30 is pushed to the rear side via the fuel lid. As a result, thecam protrusion 32 of thepushrod 30 is displaced to the rear side, and the rear end portion of thecam protrusion 32 comes into contact with the stopper inclined surface 26C2 of thesleeve 22. When thepushrod 30 is further pushed in, the rear end portion of thecam protrusion 32 slides on the stopper inclined surface 26C2 and the horizontal plane 26C3 of thesleeve 22, and thepushrod 30 rotates to one side in the rotation direction. When thecam protrusion 32 reaches the second stopper surface 26C4 of thesleeve 22 and comes into contact with the second stopper surface 26C4, the rotation of thepushrod 30 in one direction in the rotation direction is restricted (cf. the cam protrusion 32-1 indicated by the two-dot chain line inFIG. 10 ). - When the
cam protrusion 32 reaches the second stopper surface 26C4, the front end portion of thecam protrusion 32 is arranged on the rear side of the small-diameter sidesecond cam surface 28A of the secondcam hole portion 28. Therefore, when the push against the fuel lid is released in this state, thepushrod 30 moves to the front side by the urging force of thespring 34, and the front end portion of thecam protrusion 32 comes into contact with the small-diameter sidesecond cam surface 28A. Thecam protrusion 32 moves from the rear end to the front end of the secondcam hole portion 28 while the front end of thecam protrusion 32 slides on the small-diameter sidesecond cam surface 28A (cf. cam protrusion 32-2 shown by the two-dot chain line inFIG. 10 ). As a result, thepushrod 30 moves to the protruding direction side while rotating to one side in the rotation direction. Therefore, the engagement state between the lockingportion 30A of thepushrod 30 and the fuel lid is released, and the fuel lid is pressed forward by thepushrod 30 to open the fuel filler port of the vehicle. - When the
pushrod 30 reaches the protruding position, the front end portion of thecam protrusion 32 comes into contact with thefirst holding portion 26A of thesleeve 22, and the movement of thepushrod 30 in the protruding direction is restricted. As a result, thepushrod 30 is held in the protruding position (cf. cam protrusion 32-3 indicated by the two-dot chain line inFIG. 10 ). - (Operation of the
Pushrod 30 from the Protruding Position to the Pushing Position) - When the fuel lid is open, the
pushrod 30 is arranged at the protruding position, and the front end portion of thecam protrusion 32 is in contact with thefirst holding portion 26A of the cam hole 26 (cf. the cam protrusion 32-4 indicated by the two-dot chain line inFIG. 10 ). When the fuel lid is closed in this state, the fuel lid pushes the front end portion of thepushrod 30 to the rear side. As a result, thepushrod 30 is displaced rearward from the protruding position against the urging force of thespring 34, and the rear end portion of thecam protrusion 32 comes into contact with the large-diameter sidefirst cam surface 27B of the firstcam hole portion 27 in thecam hole 26. When thepushrod 30 is further pushed in the pushing direction by the fuel lid, thecam protrusion 32 moves from the front end to the rear end of the firstcam hole portion 27 while the rear end of thecam protrusion 32 slides on the large-diameter sidefirst cam surface 27B (cf. cam protrusion 32-5 shown by the two-dot chain line inFIG. 10 ). As a result, thepushrod 30 moves in the pushing direction while rotating to one side in the rotation direction. At this time, the lockingportion 30A of thepushrod 30 engages with the fuel lid. - When the
cam protrusion 32 reaches thestopper portion 26C of thecam hole 26, the first connecting surface 32C of thecam protrusion 32 abuts on the first stopper surface 26C1 of thestopper portion 26C, and the movement of thecam protrusion 32 to the rear side and the rotation to one side in the rotation direction are restricted (cf. cam protrusion 32-6 indicated by the two-dot chain line inFIG. 10 ). Further, in this state, the holdinginclined surface 26B 1 of thesecond holding portion 26B in thecam hole 26 is arranged on the front side of the front end portion of thecam protrusion 32. Therefore, when the push-in by the fuel lid is released, thepushrod 30 is displaced forward by the urging force of thespring 34, and the front end portion of thecam protrusion 32 abuts on the holdinginclined surface 26B 1 of thesecond holding portion 26B and slides along the holdinginclined surface 26B 1 on the front side and one side in the rotational direction. As a result, the front end portion of thecam protrusion 32 comes into contact with the holdinginclined surface 26B 1 of thesecond holding portion 26B and the movement of thepushrod 30 to the front side is restricted, and the first connecting surface 32C of thecam protrusion 32 comes into contact with the rotation restricting surface 26B2 of thesecond holding portion 26B and the rotation of thepushrod 30 in one direction in the rotation direction is restricted (cf. thecam protrusion 32 shown by the solid line inFIG. 10 ). - In this state, the
control unit 60 drives themotor 42 to rotate thelock member 50 from the unlocked position to the locked position. As a result, thelock portion 53 of thelock member 50 and thecam protrusion 32 of thepushrod 30 are engaged with each other, and the movement of thepushrod 30 in the pushing direction side and the rotation in one side in the rotation direction are restricted. Therefore, thepushrod 30 is held in the pushing position, and the closed state of the fuel lid is maintained. - As described above, in the lid opening and
closing device 10 of the present embodiment, thepushrod 30 of the push-push mechanism 20 is supported by thesleeve 22 so as to be movable in the axial direction and rotatable around the axis. Further, thesleeve 22 has acam hole 26, and thecam protrusion 32 of thepushrod 30 is inserted into thecam hole 26 so as to be relatively movable. During the reciprocating movement between the pushing position and the protruding position of thepushrod 30, thecam protrusion 32 is guided by thecam hole 26, and thepushrod 30 rotates to one side in the rotation direction. - Here, the
sleeve 22 comprises a small-diameter tubular portion 23 constituting the front portion of thesleeve 22, a large-diameter tubular portion 24 constituting the rear portion of thesleeve 22, and a connectingportion 25 that connects the small-diameter tubular portion 23 and the large-diameter tubular portion 24. The small-diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged apart from each other in the axial direction, and thecam hole 26 is arranged between the small-diameter tubular portion 23 and the large-diameter tubular portion 24. That is, thesleeve 22 is configured as a single member. As a result, when compared to the case where thesleeve 22 is composed of two members of a small-diameter tubular portion 23 composing one side surface in the width direction of thecam hole 26 and a large-diameter tubular portion 24 composing the other side surface in the width direction of thecam hole 26, and the small-diameter tubular portion 23 and the large-diameter tubular portion 24 are respectively assembled to thecase 12, for example, it is possible to prevent both end surfaces in the width direction of thecam hole 26 from shifting in the circumferential direction of thesleeve 22. As a result, thecam hole 26 that guides the movement of thepushrod 30 can be formed with high accuracy. Therefore, the operability of thepushrod 30 can be improved. - Moreover, the small-
diameter tubular portion 23 and the large-diameter tubular portion 24 are arranged at positions where they do not overlap when viewed from the axial direction of thesleeve 22. Specifically, when viewed from the axial direction of thesleeve 22, the small-diameter tubular portion 23 is arranged inside in the radial direction of the large-diameter tubular portion 24, and one side surface in the width direction and the other side surface in the width direction of thecam hole 26 are arranged so as to be offset in the radial direction of thesleeve 22. Thereby, for example, when thesleeve 22 is formed by injection molding, the mold can be pulled out on both sides in the axial direction of thesleeve 22 by setting the secant line of the mold at the portion of thecam hole 26. That is, it is possible to prevent the one side surface in the width direction and the other side surface in the width direction of thecam hole 26 from forming an undercut shape with each other. Therefore, even when thesleeve 22 having thecam hole 26 is configured as a single member, thesleeve 22 can be satisfactorily molded while suppressing the complexity of the mold structure for molding thesleeve 22. - Further, the connecting
portion 25 ofsleeve 22 comprises a connectingmain body portion 25A extending in the front-rear direction, afirst leg portion 25B that connects the front end portion of the connectingmain body portion 25A and the front end portion of the small-diameter tubular portion 23, and asecond leg portion 25C that connects the rear portion of the connectingmain body portion 25A and the large-diameter tubular portion 24. As a result, with a simple configuration, thesleeve 22 can be configured as a single member by connecting the small-diameter tubular portion 23 and the large-diameter tubular portion 24 separated in the front-rear direction, and thecam hole 26 can be formed between the small-diameter tubular portion 23 and the large-diameter tubular portion 24. - Further, the large-
diameter tubular portion 24 is formed with aninsertion groove 29 in which acam protrusion 32 can be inserted, and theinsertion groove 29 penetrates in the front-rear direction and communicates with thecam hole 26. As a result, thecam protrusion 32 can be inserted into thecam hole 26 from theinsertion groove 29 by inserting thepushrod 30 into thesleeve 22 from the rear side. Therefore, the assembling property of thepushrod 30 to thesleeve 22 can be improved. - Further, the
insertion groove 29 communicates with the secondcam hole portion 28 in thecam hole 26. That is, the rear surface (large-diameter sidesecond cam surface 28B) of the secondcam hole portion 28 is divided by theinsertion groove 29. Further, thepushrod 30 is urged to the front side by thespring 34. As a result, when thepushrod 30 is moved from the pushing position to the protruding position, thecam protrusion 32 comes into contact with the front surface of the second cam hole portion 28 (small-diameter side thesecond cam surface 28A) and is guided to the secondcam hole portion 28, due to the urging force of thespring 34. That is, theinsertion groove 29 is formed on the large-diameter sidesecond cam surface 28B that does not guide thecam protrusion 32 when thepushrod 30 is moved to the protruding position. As a result, theinsertion groove 29 can be formed in thesleeve 22 without affecting the reciprocating movement of thepushrod 30, and thecam protrusion 32 can be arranged in thecam hole 26 by theinsertion groove 29. - Further, the diameter of the small-
diameter tubular portion 23 is set to be smaller than the diameter of the large-diameter tubular portion 24, and thefirst leg portion 25B and theinsertion groove 29 are arranged so as to overlap each other when viewed from the axial direction of thesleeve 22. More specifically, when viewed from the front side, thefirst leg portion 25B is arranged inside theinsertion groove 29. Thereby, theinsertion groove 29 can prevent thefirst leg portion 25B from becoming an undercut shape in the axial direction of thesleeve 22, for example. Therefore, the complexity of the mold for molding thesleeve 22 can be further suppressed, and the moldability of thesleeve 22 can be improved. - Even though the diameter of the small-
diameter tubular portion 23 configuring the front end portion of thesleeve 22 is set to be smaller than the diameter of the large-diameter tubular portion 24 configuring the rear end portion of thesleeve 22 in the present embodiment, the diameter of the tubular portion configuring the front end portion of thesleeve 22 may be set to be larger than the diameter of the tubular portion configuring the rear end portion of thesleeve 22, and thepushrod 30 may be configured to be supported by the rear end portion of thesleeve 22. - Further, in the present embodiment, in the
sleeve 22, even though theinsertion groove 29 is formed at the joining portion of the large-diameter tubular portion 24 with the connectingportion 25, the position of theinsertion groove 29 is not limited to this. For example, theinsertion groove 29 may be formed in the large-diameter tubular portion 24 at a position shifted from the connectingportion 25 in the circumferential direction of thesleeve 22. That is, theinsertion groove 29 may be formed only in the large-diameter tubular portion 24. -
- 10; Lid Opening and closing device
- 22; Sleeve
- 23; Small-diameter tubular portion (first sleeve)
- 24; Large-diameter tubular portion (second sleeve)
- 25; Connecting portion
- 25A; Connecting main body portion
- 25B; First leg portion
- 25C; Second leg portion
- 26; Cam hole
- 27; First cam hole portion
- 28; Second cam hole portion
- 29; Insertion groove
- 30; Pushrod
- 32; Cam protrusion (protrusion)
- 34; Spring (urging member)
Claims (5)
1. A lid opening and closing device comprising:
a pushrod configured to be able to make a reciprocating movement in the axial direction and has a protrusion on the outer circumference;
a tubular sleeve that accommodates the pushrod so that it can be moved in the axial direction and rotatable around the axis;
wherein, the sleeve comprises:
a first sleeve configuring the one side portion in the axial direction of the sleeve;
a second sleeve that is arranged apart on the other side in the axial direction of the first sleeve and configuring the other side portion in the axial direction of the sleeve;
a connecting portion that connects the first sleeve and the second sleeve;
a cam hole that is arranged between the first sleeve and the second sleeve and into which the protrusion is inserted so as to be relatively movable, and guides the protrusion and rotates the pushrod to one side in the rotation direction during the reciprocating movement of the pushrod in the axial direction,
wherein the first sleeve and the second sleeve are arranged at positions where they do not overlap when viewed from the axial direction of the sleeve.
2. The lid opening and closing device according to claim 1 , wherein the connecting portion comprises:
a connecting main body portion extending in the axial direction on the outer side in the radial direction of the first sleeve and the second sleeve;
a first leg portion that connects one end of the connecting main body portion and the first sleeve;
a second leg portion that connects the other end of the connecting main body portion and the second sleeve.
3. The lid opening and closing device according to claim 2 , wherein;
the second sleeve is formed with an insertion groove configured so that the protrusion can be inserted,
wherein the insertion groove penetrates the second sleeve in the axial direction and communicates with the cam hole.
4. The lid opening and closing device according to claim 3 , wherein;
the pushrod is urged to one side in the axial direction by an urging member,
the cam hole comprises a first cam hole portion that guides the protrusion when the pushrod moves to the other side in the axial direction, and a second cam hole portion that guides the protrusion when the pushrod moves to one side in the axial direction,
wherein the second cam hole portion communicates with the insertion groove.
5. The lid opening and closing device according to claim 3 , wherein;
the diameter of the first sleeve is set smaller than the diameter of the second sleeve,
the insertion groove penetrates the connecting main body portion in the radial direction of the sleeve, and,
the first leg portion and the insertion groove are arranged so as to overlap each other, when viewed from the axial direction of the sleeve.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020-190609 | 2020-11-17 | ||
JP2020190609A JP2022079805A (en) | 2020-11-17 | 2020-11-17 | Lid opening/closing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20220154508A1 true US20220154508A1 (en) | 2022-05-19 |
Family
ID=81345551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/454,515 Abandoned US20220154508A1 (en) | 2020-11-17 | 2021-11-11 | Lid opening and closing device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220154508A1 (en) |
JP (1) | JP2022079805A (en) |
CN (1) | CN114508279A (en) |
DE (1) | DE102021129960A1 (en) |
-
2020
- 2020-11-17 JP JP2020190609A patent/JP2022079805A/en active Pending
-
2021
- 2021-10-11 CN CN202111180694.8A patent/CN114508279A/en active Pending
- 2021-11-11 US US17/454,515 patent/US20220154508A1/en not_active Abandoned
- 2021-11-17 DE DE102021129960.8A patent/DE102021129960A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2022079805A (en) | 2022-05-27 |
DE102021129960A1 (en) | 2022-05-19 |
CN114508279A (en) | 2022-05-17 |
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Owner name: U-SHIN LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YOSHIMOTO, MUNEHIRO;KUWAHARA, NAOYA;REEL/FRAME:058086/0696 Effective date: 20211029 |
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